/**
 * @license
 * Copyright 2021 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

goog.declareModuleId('Blockly.test.eventBlockChange');

import {sharedTestSetup, sharedTestTeardown} from './test_helpers/setup_teardown.js';
import {defineMutatorBlocks} from './test_helpers/block_definitions.js';


suite('Block Change Event', function() {
  setup(function() {
    sharedTestSetup.call(this);
    this.workspace = new Blockly.Workspace();
  });

  teardown(function() {
    sharedTestTeardown.call(this);
  });

  suite('Undo and Redo', function() {
    suite('Mutation', function() {
      setup(function() {
        defineMutatorBlocks();
      });

      teardown(function() {
        Blockly.Extensions.unregister('xml_mutator');
        Blockly.Extensions.unregister('jso_mutator');
      });

      suite('XML', function() {
        test('Undo', function() {
          const block = this.workspace.newBlock('xml_block', 'block_id');
          block.domToMutation(
              Blockly.Xml.textToDom('<mutation hasInput="true"/>'));
          const blockChange = new Blockly.Events.BlockChange(
              block, 'mutation', null, '', '<mutation hasInput="true"/>');
          blockChange.run(false);
          chai.assert.isFalse(block.hasInput);
        });

        test('Redo', function() {
          const block = this.workspace.newBlock('xml_block', 'block_id');
          const blockChange = new Blockly.Events.BlockChange(
              block, 'mutation', null, '', '<mutation hasInput="true"/>');
          blockChange.run(true);
          chai.assert.isTrue(block.hasInput);
        });
      });

      suite('JSO', function() {
        test('Undo', function() {
          const block = this.workspace.newBlock('jso_block', 'block_id');
          block.loadExtraState({hasInput: true});
          const blockChange = new Blockly.Events.BlockChange(
              block, 'mutation', null, '', '{"hasInput":true}');
          blockChange.run(false);
          chai.assert.isFalse(block.hasInput);
        });

        test('Redo', function() {
          const block = this.workspace.newBlock('jso_block', 'block_id');
          const blockChange = new Blockly.Events.BlockChange(
              block, 'mutation', null, '', '{"hasInput":true}');
          blockChange.run(true);
          chai.assert.isTrue(block.hasInput);
        });
      });
    });
  });

  suite('Serialization', function() {
    setup(function() {
      defineMutatorBlocks();
    });

    teardown(function() {
      Blockly.Extensions.unregister('xml_mutator');
      Blockly.Extensions.unregister('jso_mutator');
    });

    test('events round-trip through JSON', function() {
      const block = this.workspace.newBlock('xml_block', 'block_id');
      block.domToMutation(
          Blockly.Xml.textToDom('<mutation hasInput="true"/>'));
      const origEvent = new Blockly.Events.BlockChange(
          block, 'mutation', null, '', '<mutation hasInput="true"/>');

      const json = origEvent.toJson();
      const newEvent = new Blockly.Events.fromJson(json, this.workspace);

      chai.assert.deepEqual(newEvent, origEvent);
    });
  });
});
